Finding the Fourth Proportional to 306,552.60, 459,639.18 and 128,968.20
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Solution
The fourth proportional to 306,552.60, 459,639.18 and 128,968.20 is: 193,372.48
Step by Step Solution
- Step 1: Write the proportion equation
306,552.60 : 459,639.18 = 128,968.20 : x - Step 2: Convert to fraction form
306,552.60/459,639.18 = 128,968.20/x - Step 3: Cross multiply
306,552.60x = 459,639.18 × 128,968.20 - Step 4: Simplify right side
306,552.60x = 59,278,837,694.08 - Step 5: Solve for x
x = 59,278,837,694.08/306,552.60 - Step 6: Final answer
x = 193,372.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.